An eco-friendly cellulose-based hybrid membrane derived from waste bagasse for wearable applications

Sugarcane, as one of the most important crops in the world, plays an important role in the economy around the world. However, huge waste and low treatment efficiency put forward new requirements for bagasse treatment. Herein, a wearable eco-friendly cellulose-based hybrid membrane was fabricated with a view to recycling bagasse. Specifically, the bagasse cellulose was extracted from waste bagasse, and the CNT/cellulose@Ag nanoparticles (CCAgNP) hybrid membrane was obtained by magnetron sputtering and blending method. The CNT/cellulose membrane obtained by doping CNTs in cellulose dispersion suspension is abbreviated as CCM. The results indicated that benefiting from the high infrared reflectance (0.82) of the AgNP side and the fast absorbance (1.5) of the CCM side, the CCAgNP can achieve a dual thermal insulation due to the synergistic effect of two sides of the membrane. In addition, the asymmetric wettability of both sides of the hybrid membrane enables sweat to be transported unidirectionally, keeps the skin on the surface of the human body dry, and achieves wearing comfort. More importantly, the hybrid membrane also shows the excellent antibacterial property, air permeability, mechanical property and thermal stability, providing good support for the practical application of the hybrid membrane. This study shows that the fabrication of hybrid membranes with integrated functionalities can be extended for the fabrication of other wearable materials from agricultural wastes for various applications.